What's left in your caregiver bag of tricks to entice your loved one to drink once it starts getting difficult to offer liquids even on a baby spoon or through a straw?
Try an oral syringe if the ability to suck or swallow seems to disappear. You can get them at hospital supply stores or from your local pharmacy.
Use a small oral sponge to offer water or juice refreshment. Some medications for late-stage dementia are dispensed this way. (To clean an oral syringe or sponge, just rinse it with water and allow it to air-dry.)
Take care to keep the lips and gums moistened, for comfort as well as hydration.